Table 2

Participant characteristics by country

Countries
BEDEITNLESSETRUKUSTOTALEmbedded Imagec or η2p Value
Sample size42666374151527516752204212076088
Age, mean (SD), years25.55 (10.09)23.53 (9.22)24.52 (9.38)27.50 (11.39)25.82 (7.81)26.84 (12.16)12.86 (5.97)26.98 (10.18)25.40 (10.86)25.76 (10.31)0.03<0.001
Female201 (47)316 (48)383 (52)239 (47)119 (43)81 (49)32 (63)993 (49)527 (53)2963 (49)0.060.014
BMI, mean (SD)20.58 (3.34)19.93 (2.98)20.52 (3.05)21.33 (3.15)21.36 (3.82)21.84 (3.33)18.71 (3.99)22.10 (3.78)21.70 (3.83)21.34 (3.60)0.05<0.001
FEV1 percent predicted, mean (SD)72.34 (24.55)67.22 (25.60)73.83 (26.97)66.25 (26.12)64.67 (26.12)74.66 (26.89)71.90 (26.26)62.55 (24.49)67.89 (26.08)66.99 (25.84)0.03<0.001
Haemoptysis/pneumothorax last 6 months31 (7)27 (4)101 (24)32 (12)4 (4)1 (2)279 (14)223 (32)698 (14)0.17<0.001
Currently on intravenous antibiotics72 (17)56 (11)14 (5)19 (19)8 (18)129 (6)182 (17)461 (11)0.16<0.001
Received an organ transplant10 (2)18 (3)27 (6)20 (7)2 (2)1 (2)43 (2)131 (12)252 (5)0.18<0.001
Currently on psychiatric medication for depression/anxiety40 (9)14 (2)16 (3)17 (6)8 (5)3 (7)158 (8)257 (23)513 (10)0.24<0.001
Currently receiving psychotherapy for depression/anxiety22 (5)53 (9)17 (3)13 (5)11 (12)3 (7)145 (7)190 (18)401 (9)0.17<0.001
HADS depression0.08<0.001
 Non-case (0–7)361 (85)599 (90)683 (86)466 (90)244 (89)154 (92)37 (71)1810 (89)1052 (91)5361 (89)
  Case (8–21)65 (15)63 (10)103 (14)49 (10)31 (11)13 (8)15 (29)232 (11)100 (9)671 (11)
CES-D depression106 (28)102 (20)75 (31)16 (52)259 (29)558 (27)0.11<0.001
Either HADS or CES-D122 (29)63 (10)103 (14)114 (22)83 (30)13 (8)30 (58)232 (11)287 (25)1047 (17)0.11<0.001
HADS Anxiety0.14<0.001
 Non-case (0–7)286 (67)526 (79)486 (66)443 (86)204 (74)129 (77)36 (69)1374 (67)755 (66)4239 (70)
  Case (8–21)140 (33)136 (21)255 (34)72 (14)71 (26)38 (23)16 (31)668 (34)397 (35)1793 (30)
  • Notes: unless otherwise noted, values represent No. (%), only participants with non-missing values were included in the calculation of the percentages.

  • Shading shows data from Turkey which were not used in the logistic regression. The amount of variability across strata was estimated using Cramér's V(Embedded Imagec) for categorical variables and η2 for continuous variables.

  • BE, Belgium; DE, Germany; ES, Spain; HADS, Hospital Anxiety and Depression Scale; IT, Italy; NL, Netherlands; SE, Sweden; TR, Turkey; CES-D, Center for Epidemiologic Studies-Depression Scale; BMI, body mass index; ‘–’ indicates data was not collected.